Batiks generally are bleeders!
Pre-wash (several times) ... Retayne ... Colour Catchers!!
are your secret weapons.
A reminder ... just because you have pre-washed, does NOT mean you have stopped the bleeding.
Likewise, just because the water appears to be clear, does NOT mean it is not bleeding.
And too, just because another fabric does not get stained from it, does NOT mean it is not bleeding.
I've come to really believe in Colour Catchers ... Dr. Beckmann's are all that we can get here in Canda.